Air Filter AF25169 / P636070 for Paccar PX-6, PX-8 & Peterbilt Trucks

Description

This AF25169 air filter is a heavy duty spin-on style air filter engineered as a direct replacement for the Fleetguard AF25169 and Donaldson P636070, widely specified for Paccar PX-6 and PX-8 engines used across Peterbilt’s medium-duty truck lineup. It’s designed to protect the engine’s air intake from road dust and debris while maintaining efficient airflow for reliable on-road performance.

Product Overview

The AF25169 air filter uses pleated filter media engineered to provide a large filtration surface area within a compact housing, supporting extended service intervals typical of medium-duty highway trucks. As covered in this overview of heavy-duty truck air filter design, modern truck air filter housings are engineered to remove nearly all contaminants from intake air, since diesel engines are especially sensitive to even small amounts of particulate contamination. It’s built for straightforward removal and replacement, reducing maintenance time during scheduled service. Each unit is dimensionally verified against OEM measurements and tested for filtration performance before shipment — not just matched by part number.

Fits the Following Peterbilt Models & Engines

Always confirm your truck’s specific engine configuration and serial number range against the OEM cross-reference before ordering, as filtration specifications can vary across production years within the same model.

OEM Cross-Reference Numbers

Key Features

• Large filtration surface area in a compact housing, supporting extended service intervals for highway trucking use
• Straightforward removal and replacement, reducing maintenance time during scheduled service
• Dimensionally verified against OEM specifications, not just cross-reference number matching
• Consistent batch quality control, with raw material and pre-shipment testing on every production run
• Direct fit for Paccar PX-6/PX-8 engine platforms used across Peterbilt’s medium-duty lineup

Specifications (Publicly Referenced Dimensions)

Dimensions below are compiled from publicly available cross-reference filter databases and were consistent across the sources checked. Please verify against your truck’s actual filter housing or OEM documentation before bulk ordering.

Why Source This Air Filter from IXIN Filter

We manufacture this AF25169 air filter in our own production facility, with quality control checkpoints from raw material inspection through final pre-shipment testing. If you’re sourcing for a distribution business, truck parts retailer, or fleet, we can provide:

• Sample units for independent testing before a bulk order
• Documentation on OEM cross-reference verification
• Flexible MOQ and private-label packaging options
• Consistent batch-to-batch quality for repeat orders

Frequently Asked Questions

What trucks use the AF25169 air filter? It’s specified for Peterbilt 330, 335, and 348 medium-duty trucks equipped with the Paccar PX-6, PX-8, or ISC8.3 engine.

Is the AF25169 the same as the P636070? Yes. The Fleetguard AF25169 and Donaldson P636070 are cross-referenced to the same filter specification, along with the Paccar, Farr, Parker, and Racor housing part number 400820023.

Will this fit all the models listed? It fits the Peterbilt models and Paccar engines listed above, but filtration specifications can vary by production year and serial number range. We recommend confirming your truck’s specific configuration before ordering, especially for bulk purchases.

Do you offer samples before a bulk order? Yes. We recommend requesting a sample for independent testing before committing to a bulk order, especially for first-time buyers.

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Ready to order or request a sample? Contact IXIN Filter for pricing, MOQ, and lead time on the AF25169 air filter.